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  • Paris, France
    Thursday Apr 14, 1898

    Marie Curie

    Verifing From Her Hypothesis

    Paris, France
    Thursday Apr 14, 1898

    On 14 April 1898, the Curies optimistically weighed out a 100-gram sample of pitchblende and ground it with a pestle and mortar. They did not realize at the time that what they were searching for was present in such minute quantities that they would eventually have to process tons of the ore.




  • Paris, France
    Monday Dec 26, 1898

    Marie Curie

    The Curies Announced The Existence of a Second Element, Which They Named "radium"

    Paris, France
    Monday Dec 26, 1898

    On 26 December 1898, the Curies announced the existence of a second element, which they named "radium", from the Latin word for "ray". In the course of their research, they also coined the word "radioactivity".




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